Take a look at the OUTPUT:METER (be aware, at least until version 9.3, these outputs are in J)

!- =========== ALL OBJECTS IN CLASS: OUTPUT:METER =========== Output:Meter, Electricity:Facility, !- Key Name hourly; !- Reporting Frequency Output:Meter, ElectricityPurchased:Facility, !- Key Name hourly; !- Reporting Frequency